PyCript
Summary: PyCript is a Burp Suite extension, version 2.0, that encrypts and decrypts requests, responses, and WebSocket messages for manual and automated application penetration testing. It lets testers write custom encryption and decryption logic in any language, including Python, Go, Node.js, C, and Bash, and was last updated 20 January 2026.
Why it matters: The extension is written by third-party users Sourav Kalal and AnoF, and PortSwigger states it makes no warranty about their quality or usefulness for any particular purpose - so the encryption logic handling your test traffic carries no vendor backing.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
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